The effect of two types of organic fertilizer ( plant and animal ) and the fungus Trichoderma harzianum on growth , yield and the severity of disease caused by the root-rot fungus Rhizoctonia solani Kühn on eggplant plant (Solanum melongena L.)

Abstract

        An experiment was carried out in aplastic house near the Technical institute of Al-Mussieb during the growing season 2012-2013 using eggplant (Solanum melongena L.) To study the effect of adding two kinds of decomposed organic fertilizers (animal ,plant and mixed 1:1) alone or with the Trichoderma  harzianum fungus on growth , yield and  severity of disease caused by the root-rot fungus Rhizoctonia solani on eggplant.

     The study included eight treatments are added to the first T.  harzianum fungus. to the second plant decomposed fertilizer, to the third plant added  fer + T. harzianum fungi. To the fourth added animal fer ,to the fifth added animal fer. + T. harzianum  fungi ,to sixth mixed plant and animal fer,to the seventh mixed plant and animal fer.+ T. harzianum fungi and the eight treatments leaves without any additions (compared). The complete CRBD with three replications was used and the means was compared by L.S.D test on 0.05%.

       The result showed that the treatment of adding mixture of organic fer. with T. harzianum  fungus had  significant effect in improving all the parameter studied (length of vegetable shoot and root system of plant . number of branches \ plant ,wet weight of vegetable growth, dry weight of root and weight of yield) by104.66cm ,36.62cm, 7.10 branches \plant, 598.85 cm. 191.12 gm , 212.89 gm, 69.47gm and 4.02 ton. Donum^-1, respectively in comparison treatment by 82.5%

    The  results also showed  no difference between the treatment of adding animal fer. T. harzianum  fungus in tall of vegetable growth, weight of wet vegetable, number of branch, weight of dry root and weight of yield  by 94.4 cm , 533.8 gm, 6.8 branch \plant 64.81gm and 3.7 ton. Donum^-1, respectively.